My issue is similar to Robert_Suranyi’s issue… That’s why I used almost the same title.
I need to build a few Andoid apps for my customers only. I do NOT want to submit them to Google store. So, I just wanted to build them as debug app build mode. I built two apps, one installs on my Kindle Fire without issue (I installed and deleted it a couple of times). The other however seems to want to update an existing app and I get the message App Not Installed. Neither app had been installed on the device before.
I suspect this is a certificate issue. I would ask, do I need to get a google certificate and 2 if so, do I need a different certificate for each app? Is it possible to build different apps using the debug builds that get installed on the same device?
I have the log and apk file for the one that doesn’t install if that would help.